Overflow-trap



UNITED i STATES PATENT CEEICE.

FRANK A. RADCLIFFE, oE CLEVELAND, o'IIIo.`

OVEIRFLOW-T RAP.

SPECIFICATION forming partv of Letters Patent No. 565,565,` dated August 1 1, 1896.

i Application led April 1,1896. Serial No, 585,779. (No model.)

To all whom t may concern.;

Be it known that I, FRANK A. RADCLIFFE,

of Cleveland, Cuyahoga county, Ohio, have invented certain new and useful Improvements in Overiiow-Traps; and I do `hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled Vin the art to which it pertains to make and use the same. My invention relates to improvements in overflow-traps, the object being to provide a trap of the character indicated that is simple and durable in construction; that i can be easily cleaned, and that is capable of maintaining a deep liquid seal within it.

With this object i'n view, my invention consists in certain features of construction and combinations of parts hereinafter described,`

My improved overiiow-trap comprises an' outer globular or spherical shell A and an inner spherical or globular shell B, supported centrally {within the outer shell and suiiiciently smaller diametrically than the outer shell to form a chamber C between the two shells, surrounding the inner shell. The outer shell is composed, preferably, of two sections suitably joined together at the central portion of the trap, as at a. The inner shell B is composed, preferably, of a single piece. The outer shell is provided at the top and centrally with a comparatively large circularly -flanged opening A', whose annular iiange a' is screw-threaded externally and engaged by the correspondingly internallythreaded cap or cover D, that at its upper end is engaged by an external flange e, formed upon the upper end of the inlet-pipe E, and thereby supports said pipe that extends downwardly through a hole d in the central portion of cap or cover D, and through opening A', and into the lower portion of shell B through a comparatively diametrically large opening b in the top of said shell B, and discharges, preferably, in close proximity to the bottom of the chamber of said shell. Shell A at the bottom has a downwardly-hanged dischargeopening A2, communicating with the passage through the discharge-pipe G, that is secured in any approved manner to the flange o? of said discharge-opening.

It will` herefore be observed that my improved trap comprises aninner chamber, an

,outer chamber communicating with the upper end of the inner chamber, the inlet-pipe discharging into the lower portion of the inner chamber, and the outlet passage-way leading from the lower end of the outer chamber, and that by such construction when suction is, in the passage of liquid through the trap, created at the traps outlet, the liquid entering the lower end of the .traps inner chamber will rush up the surrounding wall of said chamber and up the externalsurface of the inlet-pipe toward the outer chamber. The primary object of my invention is to deiiect the liquid rushing up said wall of the inner chamber and at the external surface of the inlet-pipe downwardly during the passage of liquid through the trap, and thereby compel the liquid that escapes from the inner chamber to simply overflow, as it were, said chamber, and consequently the maintenance of a deep liquid seal within said chamber, between the discharging end of the inlet-pipe and the upper and discharging end of said chamber, is insured. To most eifectually accomplish this object, I 'ange the upper end of the inner shell downwardly and inwardly, around the discharge-opening b of said shell,

and thereby form an inwardly and down-` wardly inclined deflector B', extending round said opening and arranged to arrest the water or liquid that rushes up the surrounding wall of the inner chamber during the passage of liquid through the trap, and thereby defleet said liquid downwardly; and I also provide the inlet-pipe E, at any suitable point between deiiector B' and the discharge extremityof said pipe, with an outwardly and downwardly inclined deflector E', extending around the pipe, preferably approximately centrally between said extremity of the inletpipe and deiiector B', and arranged to arrest the water or liquid rushing up the external surface of said pipe during the passage of liquid through the trap, and thereby deiiect said upwardly-rushing liquid downwardly. Hence it is obvious that the inner chamber of the trap will never be bled enough by the suction created in the traps outlet to destroy IOC I or interfere with the maintenance of a deep liquid seal within the traps inner chamber.

The inner shell is supported from the outer shell preferably by means of any suitable number of metallic strips H, arranged at suitable intervals, and soldered or suitably secured to flange a of the outer shell and delector B of the inner shell at its opposite ends, respectively. The opening through the lower extremity of dellector B' is of course sufficiently large dialnetrically to accommodate the removal of the inlet-pipe and its delector B', and it will be observed that the inlet-pipe is removed with cap or cover D by unscrewing the latter from the outer shell, and that when said parts are removed convenient access is had to the interior of the trap for cleaning and other purposes.

A11 overiiow-trap comprising` an outer chamber having a discharge-opening` at its lower end, an inner chamber whose upper-end has a discharge-opening communicating with the outer chamber, an inlet-pipe discharging into the lower portion of the inner chamber, a de- `llector B projecting,` inwardly from the surrounding` wall of the inner chamber a suitable distance above the discharging extremity of the inlet-pipe, and another and outwardlyprojecting` deilector E provided around the inlet-pipe at any suitable point between the discharging extremity of said pipe and the aforesaid inwardlL'f-projecting deflector, substantially as shown, 'for the purpose specified.

In testimony whereof I sign this specification, in the presence of two witnesses, this 6th day of March, 1896.

FRANK A. RADCLIFFE.

lVitnesses:

C. H. DoRER, ELLA E. TILDEN. 

